更新了一个获取指定缩略图尺寸的方法

lib/src/ui/page/photo_preview_page.dart

 import 'dart:async';
 import 'dart:io';
+import 'dart:typed_data';
 
 import 'package:flutter/material.dart';
 import 'package:photo/src/entity/options.dart';
   @override
   Widget build(BuildContext context) {
     return FutureBuilder(
-      future: widget.imageEntity.file,
-      builder: (BuildContext context, AsyncSnapshot<File> snapshot) {
+      future: widget.imageEntity.thumbDataWithSize(1300, 1300),
+      builder: (BuildContext context, AsyncSnapshot<Uint8List> snapshot) {
         var file = snapshot.data;
         if (snapshot.connectionState == ConnectionState.done && file != null) {
           // todo ios 图片优化,在返回时再生成图片
           // 展示时,不允许放大,使用原生方案生成一个与屏幕同宽的图片
-          return Image.file(
+          return Image.memory(
             file,
             fit: BoxFit.contain,
             width: double.infinity,

pubspec.lock

   photo_manager:
     dependency: "direct main"
     description:
-      path: "."
-      ref: da04bdf1b629cf14322e795613d7e77fb933034c
-      resolved-ref: da04bdf1b629cf14322e795613d7e77fb933034c
-      url: "https://github.com/CaiJingLong/flutter_photo_manager.git"
-    source: git
+      path: "/Users/caijinglong/code/flutter/plugin/flutter_photo_manager/"
+      relative: false
+    source: path
     version: "0.0.1"
   plugin:
     dependency: transitive

pubspec.yaml

 dependencies:
   flutter:
     sdk: flutter
-  photo_manager:
-    git:
-      url: https://github.com/CaiJingLong/flutter_photo_manager.git
-      ref: da04bdf1b629cf14322e795613d7e77fb933034c
 #  photo_manager:
-#    path: /Users/caijinglong/code/flutter/plugin/flutter_photo_manager/
+#    git:
+#      url: https://github.com/CaiJingLong/flutter_photo_manager.git
+#      ref: da04bdf1b629cf14322e795613d7e77fb933034c
+  photo_manager:
+    path: /Users/caijinglong/code/flutter/plugin/flutter_photo_manager/
 
 dev_dependencies:
   flutter_test: